Seat Alhambra 1.9td Mis Fire When Hot

[smithyuk73]

Hi I have a 1.9td Seat Alhambra on a 2003 Plate.

 

It has developed a mis fire when up to temperature.

 

It sounds like running on 3 Cylinders but only when warm, its fine for first 5 miles approx.

 

I have read lots of possible issues just wondered if anyone could give me some advise.

 

I havereplaced the Fue Filer and also put a Fuel System Cleaner through the system.

 

It appears worse under load for example at take off and up hills.

 

Thanks in advance for your help.

[dlt1617]

Hi I would suggest a fault memory test as it could be straight forward after a test

 

Best wishes

 

Dave

[smithyuk73]

Hi Mike

 

Thanks for the responce.

 

I was hopeing to fix at home without the need to visit a dealer at this stage.

 

You mention a memory test is that something the garage would do. Apologies for coming across as thick.

 

I have been reading a few reports of the ECT Coolant sensor or the wiring to the Injectors.

 

Help appreciated.

[smithyuk73]

Sorry Dave thought you name was Mike.

[dlt1617]

Hi Mike (only joking)

Try one of the cheep fault code readers off e-bay (I bought a wired one rather than a bluetooth one) it will most likely come with a version of vag com.

The worst bit is setting up the correct port on the computer!

 

Best wishes

 

Mike......oops Dave

 

;)

Edited October 1, 2012 by dlt1617

[seatkid]

A possible candidate is a faulty injector wiring loom or connector. Its a relatively common fault and you can get a replacement loom quite cheaply.